FR2827019A1 - DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES - Google Patents
DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES Download PDFInfo
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- FR2827019A1 FR2827019A1 FR0109029A FR0109029A FR2827019A1 FR 2827019 A1 FR2827019 A1 FR 2827019A1 FR 0109029 A FR0109029 A FR 0109029A FR 0109029 A FR0109029 A FR 0109029A FR 2827019 A1 FR2827019 A1 FR 2827019A1
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- France
- Prior art keywords
- grease
- lubrication
- annular space
- angular sector
- crowns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
Description
- 1- 1
DISPOSITIF DE GRAISSAGE AUTOMATIQUE DE ROULEMENTS A DEVICE FOR AUTOMATIC LUBRICATION OF BEARINGS
BILLES EQUIPANT NOTAMMENT DES EOLIENNES. BALLS EQUIPPED IN PARTICULAR WITH WIND TURBINES.
La présente invention concerne un dispositif de graissage de roulements à billes. Elle s'applique notamment, mais non exclusivement, aux couronnes d'orientation équipant les éoliennes à pales orientables et dont l' axe de rotation est situé sensiblement dans l'axe du vent. Elle s'applique plus généralement à une turbine entrainée par un fluide dont l'axe de rotation est orienté dans l'axe The present invention relates to a device for lubricating ball bearings. It applies in particular, but not exclusively, to slewing rings fitted to wind turbines with adjustable blades and whose axis of rotation is located substantially in the axis of the wind. It more generally applies to a turbine driven by a fluid whose axis of rotation is oriented in the axis
d'écoulement du fluide.fluid flow.
Les éoliennes de ce type sont généralement montées sur un mât et comprennent un stator fixé de manière à pouvoir pivoter autour de l'axe du mât et ainsi s'orienter en fonction de la direction du vent, et un rotor supportant un certain nombre de pales. Pour pouvoir contrôler la vitesse de rotation du rotor et en particulier éviter qu'elle n'excède une certaine limite, les pales sont montées pivotantes sur le rotor de manière à pouvoir pivoter autour de leur axe longitudinal. A cet effet, le stator, aussi bien que les pales sont montés sur des ensembles de couronnes concentriques à roulement à billes, chaque ensemble comprenant une couronne support considérée fixe, une couronne mobile en rotation dans la couronne fixe, et un roulement à billes intermédiaire entre la couronne fixe et la couronne mobile, pour réduire les frottements de la couronne mobile sur la Wind turbines of this type are generally mounted on a mast and include a stator fixed so as to be able to pivot around the axis of the mast and thus orient themselves according to the wind direction, and a rotor supporting a certain number of blades. . In order to be able to control the speed of rotation of the rotor and in particular to prevent it from exceeding a certain limit, the blades are pivotally mounted on the rotor so as to be able to pivot around their longitudinal axis. To this end, the stator, as well as the blades, are mounted on sets of concentric crowns with ball bearings, each set comprising a support crown considered to be fixed, a crown which can rotate in the fixed crown, and an intermediate ball bearing. between the fixed crown and the movable crown, to reduce the friction of the movable crown on the
couronne fixe.fixed crown.
Or ces roulements sont soumis à de nombreuses contraintes. Comme l'éolienne est exposée aux intempéries, ils doivent être protégés dans des logements étanches, et ce d'autant plus qu'ils sont relativement peu sollicités en rotation. Il est donc nécessaire d'utiliser des joints d'étanchéité par exemple du type joints However, these bearings are subject to numerous constraints. As the wind turbine is exposed to the weather, they must be protected in watertight housings, all the more so as they are relatively little stressed in rotation. It is therefore necessary to use seals, for example of the seals type.
annulaire à lèvres toriques, et d'assurer un bon graissage des roulements. annular with O-ring lips, and ensure good lubrication of the bearings.
Il s'avère que les couronnes, de part leur position sur l'éolienne et des forces transmises par les pales, sont soumises à des efforts dissymétriques. Comme les couronnes sont toujours exposées au vent dans une même direction située dans leur plan, on peut remarquer qu'avec le temps la graisse n'est pas répartie d'une manière uniforme dans le roulement sur la circonférence des couronnes, mais a It turns out that the crowns, due to their position on the wind turbine and the forces transmitted by the blades, are subjected to asymmetrical forces. As the crowns are always exposed to the wind in the same direction located in their plane, it can be noticed that with time the grease is not distributed in a uniform way in the bearing on the circumference of the crowns, but has
tendance à suivre le vent en s'accumulant du côté non exposé au vent. tendency to follow the wind by accumulating on the side not exposed to the wind.
- 2 En outre, les couronnes d'orientation des pales sont soumises à de fortes contraintes mécaniques résultant du moment de flexion transmis aux roulements par les pales disposées perpendiculairement à la direction du vent. Il en résulte un mouvement relatif, autre que celui de leur rotation, des deux couronnes l'une - 2 In addition, the slewing rings of the blades are subjected to strong mechanical stresses resulting from the bending moment transmitted to the bearings by the blades arranged perpendicular to the direction of the wind. The result is a relative movement, other than that of their rotation, of the two crowns, one
par rapport à l'autre.compared to each other.
Ces couronnes sont également soumises à des forces centrifuges dues à la rotation du rotor et des pales qui influe également sur la répartition de la graisse These crowns are also subjected to centrifugal forces due to the rotation of the rotor and blades which also influences the distribution of grease.
dans le roulement.in the bearing.
Ces contraintes mécaniques dissymétriques affectent la répartition de la graisse dans les roulements et engendrent des surpressions qui entra^nent des fuites de graisse par les joints d'étanchéité qui ne sont pas conçus pour supporter de telles presslons. Il en résulte un graissage non optimal des roulements qui affecte la durée de vie These asymmetrical mechanical stresses affect the distribution of grease in the bearings and generate overpressures which lead to leakage of grease through seals which are not designed to support such presslons. This results in non-optimal lubrication of the bearings, which affects the service life.
des couronnes qui doivent étre remplacées relativement fréquemment. crowns that need to be replaced relatively frequently.
Par conséquent, il est nécessaire de prévoir des opérations de maintenance relativement rapprochées, notamment pour nettoyer les parties de l'éolienne souillées par la graisse qui s'est échappée des roulements et pour réinjecter de la graisse dans ces derniers par des orifices prévus dans les couronnes fixes. Ces inconvénients affectent d'une manière importante le coût d'exploitation de telles éolennes. La présente invention a pour but de supprimer ces inconvénients. Cet objectif est atteint par un dispositif de graissage automatique d'un roulement monté entre deux couronnes concentriques pivotant, c'est-à-dire tournant autour de leur axe commun, l'une par rapport à l'autre, et délimitant un espace annulaire renfermant le roulement et étant fermé par des joints d'étanchéité, au moins un conduit de graissage étant prévu entre la périphérie d'une des deux couronnes et ledit espace annulaire pour y injecter de la graisse: le dispositif suivant l'invention comprend au moins un réservoir extérieur à ces couronnes, relié et communiquant avec ledit conduit de graissage et apte à recevoir ou diffuser de l'air et/ou de la graisse dans ledit espace annulaire, sous l'effet de la différence de pression entre les deux extrémités du conduit de graissage, la dite différence de pression pouvant être créée par la variation de la pression à l'intérieur de l'espace annulaire, laquelle variation de pression pouvant étre elle-méme Consequently, it is necessary to provide relatively close maintenance operations, in particular to clean the parts of the wind turbine soiled by the grease which has escaped from the bearings and to reinject grease into the latter through holes provided in the fixed crowns. These drawbacks significantly affect the cost of operating such wind turbines. The present invention aims to eliminate these drawbacks. This objective is achieved by an automatic lubrication device for a bearing mounted between two concentric pivoting rings, that is to say rotating about their common axis, one with respect to the other, and delimiting an annular space. enclosing the bearing and being closed by seals, at least one lubrication duct being provided between the periphery of one of the two rings and said annular space for injecting grease therein: the device according to the invention comprises at least a reservoir external to these rings, connected and communicating with said lubrication duct and capable of receiving or diffusing air and / or grease in said annular space, under the effect of the pressure difference between the two ends of the lubrication duct, the said pressure difference being able to be created by the variation of the pressure inside the annular space, which variation in pressure being able to be itself
induite par les contraintes mécaniques dissymétriques évoquces précédemment. induced by the asymmetrical mechanical stresses mentioned above.
- 3 Selon l'invention un tel dispositif de graissage automatique peut équiper une éolienne comprenant un mat, un stator monté pivotant sur le mât par l'intermédiaire d'un ensemble de couronnes à roulement et un rotor supportant des pales, le stator et le rotor étant orientés de manière à ce que l'axe de rotation du rotor soit situé dans la direction du vent, les pales étant montés rotatives sur le rotor autour de leur axe longitudinal par l'intermédiaire d'ensemble de couronnes à roulement, chaque ensemble de couronnes comprenant deux couronnes concentriques pivotant l'une par rapport à l'autre et délimitant - 3 According to the invention, such an automatic lubrication device can equip a wind turbine comprising a mast, a stator pivotally mounted on the mast by means of a set of rolling crowns and a rotor supporting blades, the stator and the rotor being oriented so that the axis of rotation of the rotor is located in the wind direction, the blades being rotatably mounted on the rotor around their longitudinal axis by means of a set of rolling rings, each set crowns comprising two concentric crowns pivoting with respect to each other and delimiting
l'espace annulaire décrit ci-dessus. the annular space described above.
Selon un mode préférentiel de réalisation le dispositif de graissage suivant l'invention comprend plusieurs conduits de graissage répartis sur la circonférence d'une au moins des deux couronnes, un réservoir étant placé en According to a preferred embodiment, the lubrication device according to the invention comprises several lubrication conduits distributed over the circumference of at least one of the two rings, a reservoir being placed in
communication avec chaque conduit de graissage. communication with each lubrication line.
De plus la graisse ayant tendance à s'accumuler dans au moins un secteur angulaire déterminé dudit espace annulaire les réservoirs situés à proximité dudit secteur annulaire sont vides et aptes à recevoir la graisse en excès etlou l'air en surpression dans ledit secteur angulaire et les réservoirs situés à l'opposé dudit secteur angulaire sont remplis de graisse et aptes à y injecter de la graisse; des canalisations peuvent relices entre eux les conduits de graissage avec des moyens pour tranférer la graisse en exès dudit secteur angulaire vers le In addition, the grease tending to accumulate in at least one determined angular sector of said annular space, the reservoirs located near said annular sector are empty and capable of receiving excess grease and / or the air in overpressure in said angular sector and the reservoirs located opposite said angular sector are filled with grease and capable of injecting grease into it; pipes can connect the lubrication ducts to each other with means for transferring excess grease from said angular sector to the
secteur angulaire opposé via ces canalisations. opposite angular sector via these pipes.
Chaque réservoir est déformable et dans des modes particuliers de réalisation peut comporter des soufflets pour pouvoir se déformer; il peut étre constitué Each reservoir is deformable and in particular embodiments may include bellows to be able to deform; it can be constituted
d'une poche en matière souple.a pocket made of flexible material.
Grâce à ces dispositions, les réservoirs selon l'invention peuvent compenser les variations et déplacements de volume de la graisse, mais également de l' air, contenus dans la couronne en fonction des variations de pression qui peuvent se produire suivant les explications données précédemment mais également suivant la température, l'usure ect..., en particulier les réservoirs situés en amont par rapport au vent ayant alors tendance à se vider injectent de la graisse dans les zones en déficit de graisse, tandis que les réservoirs en aval du vent ayant tendance à se remplir absorbent ainsi les surpressions d' air et de graisse. La pression de la graisse à l'intérieur du roulement se trouve donc régulée et répartie d'une manière plus uniforme sur toute la circonférence des couronnes, - 4 tout en supprimant le risque de surpressions qui ne sont pas supportées par les joints d'étanchéité. Il en résulte que les fuites de graisse par les joints Thanks to these provisions, the reservoirs according to the invention can compensate for the variations and displacements in volume of the grease, but also of the air, contained in the crown as a function of the variations in pressure which can occur according to the explanations given above but also depending on the temperature, wear ect ..., in particular the tanks located upstream with respect to the wind which then tend to empty inject grease into the areas in deficit of grease, while the tanks downstream of the wind tending to fill up, they absorb excess air and grease. The grease pressure inside the bearing is therefore regulated and distributed more uniformly over the entire circumference of the crowns, - 4 while eliminating the risk of overpressures which are not supported by the seals . As a result, grease leaks through the seals
d'étanchéité sont quasiment supprimés. are almost eliminated.
En plaçant des réservoirs de graisse pleins en amont et des réservoirs vides en aval du vent, les roulements se trouvent ainsi graissés d'une manière optimale pendant une longue période. La durée de vie des couronnes se trouve donc By placing full grease tanks upstream and empty tanks downwind, the bearings are thus optimally lubricated for a long time. The life of the crowns is therefore
considérablement augmentée.considerably increased.
En outre, l'invention permet de réduire d'une manière importante non seulement la fréquence des opérations maintenance, mais également leur durée, étant In addition, the invention makes it possible to significantly reduce not only the frequency of maintenance operations, but also their duration, being
donné qu'il n'est plus nécessaire de nettoyer les fuites de graisse. since it is no longer necessary to clean up the grease leaks.
Un mode de réalisation préféré de l'invention sera décrit ci-après, à titre d'exemple non limitatif, avec référence aux dessins annexés dans lesquels: La figure l représente schématiquement en vue partielle en perspective une éolienne; La figure 2 représente schématiquement en vue en plan un ensemble de couronnes d'orientation d'une pale de rotor d'éolienne, équipée du dispositif de graissage selon l'invention; La figure 3 monke en détail en coupe transversale le dispositif de A preferred embodiment of the invention will be described below, by way of nonlimiting example, with reference to the appended drawings in which: FIG. 1 schematically represents in partial view in perspective a wind turbine; FIG. 2 schematically represents in plan view a set of slewing rings of a wind turbine rotor blade, equipped with the lubrication device according to the invention; Figure 3 monke in detail in cross section the device
graissage montré sur la figure 1.lubrication shown in figure 1.
Sur la figure l, l'éolienne comprend une nacelle 20 montée rotative sur un mât 21 vertical, par l'intermédiaire d'un premier ensemble de couronne à roulement 22, de manière à pouvoir tourner autour d'un axe zz' vertical pour pouvoir s'orienter en fonction de la direction du vent. La nacelle 20 est solidaire d'un stator dans lequel est monté rotatif un rotor 23 tournant autour d'un axe yy'. Des pales 24, par exemple trois, sont montées pivotantes sur le rotor par l'intermédiaire d'une couronne l à roulement respective, de manière à pouvoir pivoter autour de l'axe longitudinal xx' de la pale. De cette manière, on peut faire tourner la pale autour de son axe pour réguler la vitesse de rotation du In FIG. 1, the wind turbine comprises a nacelle 20 rotatably mounted on a vertical mast 21, by means of a first set of rolling crown 22, so as to be able to rotate around a vertical axis zz 'in order to be able orient themselves according to the wind direction. The nacelle 20 is integral with a stator in which is rotatably mounted a rotor 23 rotating around an axis yy '. Blades 24, for example three, are pivotally mounted on the rotor by means of a crown 1 with respective rolling, so as to be able to pivot around the longitudinal axis xx 'of the blade. In this way, the blade can be rotated around its axis to regulate the speed of rotation of the
rotor en fonction de la vitesse du vent. rotor as a function of wind speed.
La it_ 2 rrdsee do Moselle 1 de coyotes d'ocn-- d'uc psJc 24 do rotor 23 doUcunc. Cat casonible comp[cnd deux courgnnes 2, 3 conce1dbdues, savoir tale come ex16rieure 2 ft<6c sur lo rotor de 1'601icIunc, e* ma confront 3 inldeme coxiale, morl6c rotalive dens in co_e 2 cxt6rieurc et solidaire dc 1a palc 24. 1Dcl qrlc roprdsent6 plus en d6dl sur 1a Agule 3, l'espace endrc les den courcues 2, 3 d611te un volume _le 8 p log roemenl, p elc du e billes, pe" de rdiErc les hoDemenTs enhe les doux couronnes, lorsque 1u couronne 1rl6deure La it_ 2 rrdsee do Moselle 1 de coyotes d'ocn-- d'uc psJc 24 do rotor 23 doUcunc. Cat casonible comp [cnd two crowns 2, 3 designed, know tale as ex16rieure 2 ft <6c on the rotor of 1'601icIunc, e * ma confront 3 inldeme coxiale, morl6c rotalive dens in co_e 2 cxt6rieurc and united da pala 24. 1Dcl qrlc roprdsent6 more in dddl on 1a Agule 3, the space endrc dencues 2, 3 d116 a volume _le 8 p log roemenl, p elc e e marbles, pe "de rdiErc the hoDemenTs in soft crowns, when 1u the crown 1rl6deure
3 pivote dans la couronnc cx16doure 2. 3 pivots in the crown cx16doure 2.
Lc volume _lahe 8 du ro=t tllles cs1 6 p un jot d'6-ch61 Lc volume _lahe 8 du ro = t tllles cs1 6 p un jot d'6-ch61
4, 4' s6dc =r.4, 4 's6dc = r.
Lcs dx oooes 2, 3 cor_- oube e plit6 de pees _ 7 - -s s 1 pbe p 1 on Lcs dx oooes 2, 3 cor_- oube e plit6 de pees _ 7 - -s s 1 pbe p 1 on
ecdv-t s le rotor ec c pc.ecdv-t the rotor ec c pc.
Les jo Jch66 4, s p exle consUN6s p des jots _ules The jo Jch66 4, s p exle consUN6s p des jots _ules
tques lvs.tques lvs.
P 11_, 1a cooe t6de 2 est ie dc pos de aissage consh6s p des conduks radi 9 reU 1a oc cxt6d oinque dc 1n co-ne P 11_, the coe t6de 2 is ie the smoothing position conss p p radiated conduits 9 reU 1a oc cxt6d oin dc 1n co-ne
& sc9sspsb-& sc9sspsb-
so re6s lors des ons de mence po iecter de la aisse ds lc vol_e 8 du ulement bUle S- l'invon, les conts radix 9 sont mis comcon cc des seobs 5 peU=t dc rooucUlL les cxcs dc nissc ou cc de 1a aisse ds Ie vo _le 8, cn nchon de 1a pssi de sse r6=t so re6s during ons of mence po iect aisse ds lc vol_e 8 of only bUle S- invon, the radix tales 9 are put comcon cc des seobs 5 PEU = t dc rooucUlL cxcs dc nissc ou cc de 1a aisse ds Ie _ le 8, cn nchon de 1a pssi de sse r6 = t
voinagc de l-ouce condt 9 ds lc volu 8. voinagc de l-ouce condt 9 ds lc volu 8.
Lcs rdsoirs 5 corcc p clc unc ouv ulc 10 ^c Lcs rdsoirs 5 corcc p clc unc ouv ulc 10 ^ c
po sngcr cc 6tcb6i ds oondub dc ssage 9. po sngcr cc 6tcb6i ds oondub dc ssage 9.
Ds sont dc prcc d61es po pouvoL se relL ou se d dc Ds are dc prcc d61es po can RELL or d dc
sse ss = dc c cssions.sse ss = dc c cssions.
Ils peuv c r6is6s ds m ridc ct 6e nis dc soume c_e rrds s los Agcs 2 et 3, po pooL se d6r. I1 peuvt 6gcmt c r6is6s ds m= d61c, p clc c pochc They can be rs ds m ridc ct 6 nis dc soume c_e rrds s los Agcs 2 and 3, po poL dér. I1 can be 6 cm c risis ds m = d61c, p clc c pochc
e mc solc tclle qu' Blm plashc.e mc solc tclle than Blm plashc.
- 6 Avantageusement, on dispose des réservoirs S remplis de graisse aux points de graissage situés en amont par rapport au vent, et des réservoirs S vides aux points de graissage situés en aval. De cette manière, tant que les réservoirs amonts ne sont pas totalement vides et les réservoirs avals totalement remplis, la répartition de la graisse dans le volume 8, ainsi que sa pression est sensiblement homogène dans l'ensemble du volume 8. Il suffit donc de prévoir des opérations de maintenance suffisamment fréquentes pour échanger les réservoirs vides par les réservoirs pleins et réciproquement, et éventuellement pour aj outer un peu de graisse dans les réservoirs pleins de manière à compenser les faibles pertes qui ne seraient pas supprimées totalement par le Advantageously, there are reservoirs S filled with grease at the lubrication points situated upstream relative to the wind, and empty reservoirs S at the lubrication points situated downstream. In this way, as long as the upstream tanks are not completely empty and the downstream tanks are completely filled, the distribution of the grease in the volume 8, as well as its pressure is substantially homogeneous in the whole of the volume 8. It therefore suffices to provide maintenance operations that are frequent enough to exchange the empty tanks with the full tanks and vice versa, and possibly to add a little grease to the full tanks so as to compensate for the small losses which would not be completely eliminated by the
dispositif suivant l'invention.device according to the invention.
Les opérations de graissage sont courtes car ne nécessitent que le changement des réservoirs S. Alternativement, on peut prévoir de relier tous les réservoirs ou directement les conduits de graissage par une canalisation externe sur laquelle est monté une pompe permettant de refouler la graisse des zones d'accumulation de graisse vers les zones en déficit de graisse. Bien entendu, il n'est pas nécessaire que la pompe fonctionne en permanence, mais uniquement à une fréquence suffisante pour éviter que. De cette manière, les opérations de maintenance peuvent être encore davantage espacées dans le temps, et simplement consister à compenser The lubrication operations are short because they only require the change of the reservoirs S. Alternatively, it is possible to connect all the reservoirs or directly the lubrication conduits by an external pipe on which is mounted a pump making it possible to discharge the grease from the zones of accumulation of fat towards fat-deficient areas. Of course, it is not necessary that the pump runs continuously, but only at a frequency sufficient to avoid that. In this way, maintenance operations can be further spaced out over time, and simply consist in compensating
les pertes de graisse.fat loss.
- 7- 7
Claims (10)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0109029A FR2827019B1 (en) | 2001-07-06 | 2001-07-06 | DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES |
DE60218785T DE60218785T2 (en) | 2001-07-06 | 2002-06-20 | Device for improving the lubrication of roller bearings, in particular for wind turbines |
DK02291547T DK1273814T3 (en) | 2001-07-06 | 2002-06-20 | Device for improving the lubrication of rolling bearings especially for wind turbines |
EP02291547A EP1273814B1 (en) | 2001-07-06 | 2002-06-20 | Device for improving lubrication of rolling bearings especially for wind turbines |
AT02291547T ATE356940T1 (en) | 2001-07-06 | 2002-06-20 | DEVICE FOR IMPROVING THE LUBRICATION OF ROLLING BEARINGS, PARTICULARLY FOR WIND TURBINES |
ES02291547T ES2282380T3 (en) | 2001-07-06 | 2002-06-20 | DEVICE FOR IMPROVING THE OILING OF BEARINGS THAT EQUIP MAINLY THE WIND TURBINES. |
US10/188,739 US6991378B2 (en) | 2001-07-06 | 2002-07-02 | Device for improving the lubrication of bearings, particularly in wind turbines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0109029A FR2827019B1 (en) | 2001-07-06 | 2001-07-06 | DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2827019A1 true FR2827019A1 (en) | 2003-01-10 |
FR2827019B1 FR2827019B1 (en) | 2003-09-26 |
Family
ID=8865231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0109029A Expired - Lifetime FR2827019B1 (en) | 2001-07-06 | 2001-07-06 | DEVICE FOR AUTOMATIC LUBRICATION OF BALL BEARINGS EQUIPPED IN PARTICULAR WITH WIND TURBINES |
Country Status (7)
Country | Link |
---|---|
US (1) | US6991378B2 (en) |
EP (1) | EP1273814B1 (en) |
AT (1) | ATE356940T1 (en) |
DE (1) | DE60218785T2 (en) |
DK (1) | DK1273814T3 (en) |
ES (1) | ES2282380T3 (en) |
FR (1) | FR2827019B1 (en) |
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- 2002-06-20 EP EP02291547A patent/EP1273814B1/en not_active Expired - Lifetime
- 2002-06-20 ES ES02291547T patent/ES2282380T3/en not_active Expired - Lifetime
- 2002-06-20 DK DK02291547T patent/DK1273814T3/en active
- 2002-06-20 DE DE60218785T patent/DE60218785T2/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
ATE356940T1 (en) | 2007-04-15 |
ES2282380T3 (en) | 2007-10-16 |
EP1273814A1 (en) | 2003-01-08 |
DE60218785D1 (en) | 2007-04-26 |
EP1273814B1 (en) | 2007-03-14 |
DE60218785T2 (en) | 2007-07-12 |
US6991378B2 (en) | 2006-01-31 |
FR2827019B1 (en) | 2003-09-26 |
DK1273814T3 (en) | 2007-05-29 |
US20030048963A1 (en) | 2003-03-13 |
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